Submit customer list vAT exemption

Good evening, everyone. Is it me or should I now submit a customer list? Situation: I have a vAT exemption (sole proprietor) but I do have a amount of (Belgian) customers to whom I invoiced more than €250 in 2023. When I look in the ‘customer list’ menu, there are indeed a amount of customers listed.

Can anyone tell me whether I need to submit this?

Thanks in advance.